{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:EZ3GOQNXGPCEFBKFY3DJMBE3U7","short_pith_number":"pith:EZ3GOQNX","canonical_record":{"source":{"id":"1012.0125","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-12-01T08:16:20Z","cross_cats_sorted":[],"title_canon_sha256":"79773f741a5ee8869a24d38661c585801062f52a58137cf6ef95231b925b5e49","abstract_canon_sha256":"f5d06f397e1538f096abe0c4c4946afaa1e5f29a0f7a4e413965302d2f6a807c"},"schema_version":"1.0"},"canonical_sha256":"26766741b733c4428545c6c696049ba7f327964cbe375471760a70069cc22994","source":{"kind":"arxiv","id":"1012.0125","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.0125","created_at":"2026-05-18T04:08:44Z"},{"alias_kind":"arxiv_version","alias_value":"1012.0125v2","created_at":"2026-05-18T04:08:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.0125","created_at":"2026-05-18T04:08:44Z"},{"alias_kind":"pith_short_12","alias_value":"EZ3GOQNXGPCE","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"EZ3GOQNXGPCEFBKF","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"EZ3GOQNX","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:EZ3GOQNXGPCEFBKFY3DJMBE3U7","target":"record","payload":{"canonical_record":{"source":{"id":"1012.0125","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-12-01T08:16:20Z","cross_cats_sorted":[],"title_canon_sha256":"79773f741a5ee8869a24d38661c585801062f52a58137cf6ef95231b925b5e49","abstract_canon_sha256":"f5d06f397e1538f096abe0c4c4946afaa1e5f29a0f7a4e413965302d2f6a807c"},"schema_version":"1.0"},"canonical_sha256":"26766741b733c4428545c6c696049ba7f327964cbe375471760a70069cc22994","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:08:44.740133Z","signature_b64":"u7aP5IK0w9TJlXaQb4sXzoy5n5cR5JDn/5oZ8GBUFHGua9t+VboWOJr3loFraw/AsSgZ6FggNyBWBghMuc2sCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"26766741b733c4428545c6c696049ba7f327964cbe375471760a70069cc22994","last_reissued_at":"2026-05-18T04:08:44.739718Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:08:44.739718Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.0125","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:08:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r2UBnHi9MDbs5zP+maJuaVydAqfGtTe52pP/X/p/r+V+SxsL5dfR3UGUlgzOe30EOvXlcYw+ySvoPioo/0icAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T13:13:10.464514Z"},"content_sha256":"96ee1759ef3faf362b02b2867f0fa02cb2740a9d5812314f8c5c2622db077ada","schema_version":"1.0","event_id":"sha256:96ee1759ef3faf362b02b2867f0fa02cb2740a9d5812314f8c5c2622db077ada"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:EZ3GOQNXGPCEFBKFY3DJMBE3U7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic fluctuations and self--energy effects in two--dimensional itinerant systems with van Hove singularity of electronic spectrum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. A. Katanin, P. A. Igoshev, V. Yu. Irkhin","submitted_at":"2010-12-01T08:16:20Z","abstract_excerpt":"We investigate a competition of tendencies towards ferromagnetic and incommensurate order in two-dimensional fermionic systems within functional renormalization group technique using temperature as a scale parameter. We assume that the Fermi surface (FS) is substantially curved, lies in the vicinity of van Hove singularity points and perform an account of the self-energy corrections. It is shown that the character of magnetic fluctuations is strongly asymmetric with respect to the Fermi level position relatively to van Hove singularity (VHS). For the Fermi level above VHS we find at low temper"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.0125","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:08:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wwgmDJ3X27WYVa832ihA6KCWCev7kZmZdTERuRdAc2X2oDbgXnQyyd4PKbPVGp+8iF6kWs/2l4rhjqJchYXTDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T13:13:10.465106Z"},"content_sha256":"1164fdfed1d59c9486c3e96f7b67300cfd1b1c85b645f5d47e7208f7428794f0","schema_version":"1.0","event_id":"sha256:1164fdfed1d59c9486c3e96f7b67300cfd1b1c85b645f5d47e7208f7428794f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EZ3GOQNXGPCEFBKFY3DJMBE3U7/bundle.json","state_url":"https://pith.science/pith/EZ3GOQNXGPCEFBKFY3DJMBE3U7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EZ3GOQNXGPCEFBKFY3DJMBE3U7/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-06T13:13:10Z","links":{"resolver":"https://pith.science/pith/EZ3GOQNXGPCEFBKFY3DJMBE3U7","bundle":"https://pith.science/pith/EZ3GOQNXGPCEFBKFY3DJMBE3U7/bundle.json","state":"https://pith.science/pith/EZ3GOQNXGPCEFBKFY3DJMBE3U7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EZ3GOQNXGPCEFBKFY3DJMBE3U7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:EZ3GOQNXGPCEFBKFY3DJMBE3U7","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"f5d06f397e1538f096abe0c4c4946afaa1e5f29a0f7a4e413965302d2f6a807c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-12-01T08:16:20Z","title_canon_sha256":"79773f741a5ee8869a24d38661c585801062f52a58137cf6ef95231b925b5e49"},"schema_version":"1.0","source":{"id":"1012.0125","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.0125","created_at":"2026-05-18T04:08:44Z"},{"alias_kind":"arxiv_version","alias_value":"1012.0125v2","created_at":"2026-05-18T04:08:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.0125","created_at":"2026-05-18T04:08:44Z"},{"alias_kind":"pith_short_12","alias_value":"EZ3GOQNXGPCE","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"EZ3GOQNXGPCEFBKF","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"EZ3GOQNX","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:1164fdfed1d59c9486c3e96f7b67300cfd1b1c85b645f5d47e7208f7428794f0","target":"graph","created_at":"2026-05-18T04:08:44Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We investigate a competition of tendencies towards ferromagnetic and incommensurate order in two-dimensional fermionic systems within functional renormalization group technique using temperature as a scale parameter. We assume that the Fermi surface (FS) is substantially curved, lies in the vicinity of van Hove singularity points and perform an account of the self-energy corrections. It is shown that the character of magnetic fluctuations is strongly asymmetric with respect to the Fermi level position relatively to van Hove singularity (VHS). For the Fermi level above VHS we find at low temper","authors_text":"A. A. Katanin, P. A. Igoshev, V. Yu. Irkhin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-12-01T08:16:20Z","title":"Magnetic fluctuations and self--energy effects in two--dimensional itinerant systems with van Hove singularity of electronic spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.0125","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:96ee1759ef3faf362b02b2867f0fa02cb2740a9d5812314f8c5c2622db077ada","target":"record","created_at":"2026-05-18T04:08:44Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"f5d06f397e1538f096abe0c4c4946afaa1e5f29a0f7a4e413965302d2f6a807c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-12-01T08:16:20Z","title_canon_sha256":"79773f741a5ee8869a24d38661c585801062f52a58137cf6ef95231b925b5e49"},"schema_version":"1.0","source":{"id":"1012.0125","kind":"arxiv","version":2}},"canonical_sha256":"26766741b733c4428545c6c696049ba7f327964cbe375471760a70069cc22994","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"26766741b733c4428545c6c696049ba7f327964cbe375471760a70069cc22994","first_computed_at":"2026-05-18T04:08:44.739718Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:08:44.739718Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u7aP5IK0w9TJlXaQb4sXzoy5n5cR5JDn/5oZ8GBUFHGua9t+VboWOJr3loFraw/AsSgZ6FggNyBWBghMuc2sCg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:08:44.740133Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.0125","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96ee1759ef3faf362b02b2867f0fa02cb2740a9d5812314f8c5c2622db077ada","sha256:1164fdfed1d59c9486c3e96f7b67300cfd1b1c85b645f5d47e7208f7428794f0"],"state_sha256":"e1cfc60f1f4c84cae1cf91cd15dd280125b1ff18ea9b7ba5e68aed974d7e235c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rsfxIUXeOsxyPqkSMlzIiEutOFkPCoerDVLuM5Uwxpyob6xEfsFYXHU4gwrO2wZy6RGG2KV+8AkuCVk0Ufe/BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T13:13:10.467971Z","bundle_sha256":"a73548dc34403ba5cac91a72fbaf0bdff22cb19bcb6d0ad496bac2fea3c476d2"}}